Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a51297131b035e0…

MALICIOUS

PDF

59.9 KB Created: 2020-08-13 21:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8631f2a7d4acdec4db064f353372b2d4 SHA-1: b04aab8423f550ab244e5083d4a13e99cd51fa32 SHA-256: 4a51297131b035e05011f9f42292b846685aa621c71598754589d56806d1300d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a direct link to a known malicious redirector, ttraff.com, which is disguised as a finance case study. This indicates a phishing or social engineering attempt to redirect the user to malicious infrastructure. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=finance+case+study+examples+with+solutions+pdf In PDF document text
    • http://files.marymackaystudio.co.uk/uploads/1/3/0/7/130775490/bivitakudosiduvepo.pdfIn PDF document text
    • http://files.zenncounseling.com/uploads/1/3/1/4/131407668/2580747.pdfIn PDF document text
    • http://files.cartyfamily.org/uploads/1/3/1/1/131164202/6106426.pdfIn PDF document text
    • http://files.reddeerkinettes.ca/uploads/1/3/1/6/131607117/tunafavarulefi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2610/3971/files/20804656750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/rebiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/python_https_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2306/4488/files/nombre_rationnel_et_irrationnel_exercice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/74445720925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/8359169070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/mawowatulawamanamur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9276/0981/files/annecy_guida_turistica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/zojasuwazirujodamapuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/84583127192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5193/files/78145386962.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a1fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1FB 2828 bytes
SHA-256: 85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f
font_01_sfnt_off0000abf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABF5 5516 bytes
SHA-256: 6c35bf7a75f2d3dd780f24f4cd1fe04719a7c7c8f57e708f3da712313024343f
font_02_sfnt_off0000bead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEAD 10420 bytes
SHA-256: 5fa87aa52ec6d26a8d922839ca79810fb38b33daedd4ed8452851a66df5f4051

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